Pump



Nov. 2, 1937. G. A. LOWREY PUMP Filed March 24, 1954 Patented Nov. 2,1937 UNITED STATES PATENT OFFICE PULIP Application March 24, 1934,Serial No. 717,251

'lclaim.

This invention relates to a pump.

An object of the invention is to' provide in a pump, a novel type oftraveling valve mechanism comprising a tubular body having a valve forcontrolling the flow of fluid through the body with novel means forimparting a whirling movement to the fluid whereby the valve may begradually rotated during its operation and a partial rotation back andforth imparted to the body as 0 the valve mechanism is reciprocated inthe working barrel.

Another object of the invention is to providein a traveling valvemechanism, a valve actuator the valve, to limit such opening movementand to guide the valve during the closing movement thereof.

The subject matter of this application forms a continuation in part, ofthe abandoned applica- With the above and other objects in view theinvention has particular relation to certain novel features ofconstruction, operation, and arrangement of parts, an example of whichis given in this specification and illustrated in the accompanyingdrawing, wherein:

Figure 1 shows a side view of the traveling valve mechanism shown partlyin section.

Figure 2 shows a cross sectional view taken on the line 2--2 ofFigure 1. I

Figure 3 shows a cross sectional view taken on the line 33 of Figure 1,and

Figure 4 shows a vertical sectional view of the pump working barrelshowing the standing valve and the traveling valve mechanism mountedthereon.

In the drawing the numeral I designates a pump working barrel at thelower end of which there is mounted the upwardly opening standing valve2. Above this standing valve the traveling valve mechanism is located inthe working barrel. This traveling valve mechanism comprises a tubularbody 3, which preferably has an intermediate enlarged section 4 withupper and lower series of packing rings 5, 6 above and beneath saidenlarged section 4. However any suitable type of packing rings may beemployed. -Screwed on to the upper end. of the body 3 there is a tubularnipple I and a valve cage 8 is connected on to the nipple. Clamped ontothe upper end of the nipple I there is an annular valve seat 9 whichis controlled by the upwardly opening ball valve II) which is confinedby said cage. The upper end arranged to cushion the opening movement oftion on Pump, filed August 27, 1932, under Serial of the cage 8 isreduced and outwardly threaded,

forming 'a connection for the sucker rod II through which the travelingvalve mechanism may be reciprocated.

Fitted within the cage 8 above the valve I0 there is a valve actuator I2which is approximately circular as shown in Figure 2 and whose underside is concave to fit the valve Ill. The under side oi the actuator hasthe cross channels I3 which admit fluid above the valve so as to preventthe formation of a vacuum between the valve and actuator.

- The reduced upper end of the cage has a cylinder I4 and the actuatorI2 has an upstanding stem I5 whose upper end is reduced and fittedloosely in said cylinder. The reduction of the upper end of the stemforms the annular stop I6 to limit the upward movement of the actuator.Surrounding the stem I5 and interposed between the valve actuator I2 andthe lower end of the cylinder I4 there is a coil spring I 1.

Within the lower end of the body 3 there is the spiraled vane I8 asshown in Figures 1 and 3. Upon down stroke the valve 2 will be closedand the fluid above it will pass upwardly through the body 3 and willlift the valve II). The stem I5 will be cushioned in its upward movementby the fluid in the cylinder I4 to the end that the valve II) will belifted only the required distance to accommodate the required fluidbeing pumped. Upon upstroke of the valve mechanism the actuator I2assisted by the spring I I will guide the valve In directly and quicklyonto its seat so that there will be no back flow or leakage of the fluidafter it has once passed above the valve Ill.

The fluid flowing upwardly through the body 3 will have a whirlingmotion imparted to it by the vane I8 and this will cause a partialturning movement of the valve I0 with each upward movement of the valve,causing the valve to wear uniformly and washing away any sand that mightcollect about the valve and seat.

The resistance of the fluid through which the vane i8 travels will alsocause a partial turning movement of the traveling valve mechanism assaid valve mechanism moves downward, placing the sucker rod I I under atortional strain and upon upward movement of the traveling valvemechanism the torsion of the sucker rod will cause the traveling valvemechanism to partially rotate in the other direction so that saidtraveling valve mechanism will partially rotate back and forth as saidtraveling valve mechanism is reciprocated thus causing a uniform wear onthe working barrel and preventing the scoring thereof.

The drawing and description disclose what is valve mechanism in thebarrel comprising an elongated tubular body having an approximatelyuniform liquid passageway therethrough, a sucker rod to which the bodyis attached and by which the body may be reciprocated, an .upwardlyopening valve in the upper end of the body controlling the flow ofliquid upwardly through the body, guide means for controlling said valvecomprising aplunger, the upper end of said plunger being reduced, indiameter, and the lower end of which is formed to fit over said valve, achannel across said lower end, a coil spring about said plunger, acylinder in the upper end of the traveling valve in which the upper endof the plunger works, a stop on said plunger, limiting the upwardmovement thereof a plurality of inlets at the lower end of saidpassageway forming a vane having spiralied walls and forming the onlyobstruction in the passageway.

GEORGE A. LOWREY.

